EP1424801A3 - Procédé et dispositif de génération d'une mesure de qualité de canal dans un système de communication par paquets à modulation multiporteuse - Google Patents

Procédé et dispositif de génération d'une mesure de qualité de canal dans un système de communication par paquets à modulation multiporteuse Download PDF

Info

Publication number
EP1424801A3
EP1424801A3 EP03104401A EP03104401A EP1424801A3 EP 1424801 A3 EP1424801 A3 EP 1424801A3 EP 03104401 A EP03104401 A EP 03104401A EP 03104401 A EP03104401 A EP 03104401A EP 1424801 A3 EP1424801 A3 EP 1424801A3
Authority
EP
European Patent Office
Prior art keywords
processor
baseband
packet
baseband processor
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03104401A
Other languages
German (de)
English (en)
Other versions
EP1424801A2 (fr
Inventor
Kofi D. Anim-Appiah
Anuj Batra
Richard G C. Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of EP1424801A2 publication Critical patent/EP1424801A2/fr
Publication of EP1424801A3 publication Critical patent/EP1424801A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
EP03104401A 2002-11-27 2003-11-26 Procédé et dispositif de génération d'une mesure de qualité de canal dans un système de communication par paquets à modulation multiporteuse Withdrawn EP1424801A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US384944 1989-07-25
US42977102P 2002-11-27 2002-11-27
US429771P 2002-11-27
US10/384,944 US7295517B2 (en) 2002-11-27 2003-03-10 Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system

Publications (2)

Publication Number Publication Date
EP1424801A2 EP1424801A2 (fr) 2004-06-02
EP1424801A3 true EP1424801A3 (fr) 2006-10-25

Family

ID=32302358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104401A Withdrawn EP1424801A3 (fr) 2002-11-27 2003-11-26 Procédé et dispositif de génération d'une mesure de qualité de canal dans un système de communication par paquets à modulation multiporteuse

Country Status (3)

Country Link
US (1) US7295517B2 (fr)
EP (1) EP1424801A3 (fr)
JP (1) JP2004180314A (fr)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7738848B2 (en) 2003-01-14 2010-06-15 Interdigital Technology Corporation Received signal to noise indicator
US20040235423A1 (en) * 2003-01-14 2004-11-25 Interdigital Technology Corporation Method and apparatus for network management using perceived signal to noise and interference indicator
US6898198B1 (en) * 2003-02-14 2005-05-24 Cisco Systems Wireless Networking (Australia) Pty Limited Selecting the data rate of a wireless network link according to a measure of error vector magnitude
US6940843B2 (en) * 2003-02-14 2005-09-06 Cisco Technology, Inc. Selecting an access point according to a measure of received signal quality
US7668132B2 (en) * 2003-03-12 2010-02-23 Interdigital Technology Corporation System and method for received channel power indicator (RCPI) measurement
US7567631B2 (en) * 2003-09-12 2009-07-28 Neil Birkett Method for amplitude insensitive packet detection
US7418042B2 (en) * 2003-09-17 2008-08-26 Atheros Communications, Inc. Repetition coding for a wireless system
US7428273B2 (en) * 2003-09-18 2008-09-23 Promptu Systems Corporation Method and apparatus for efficient preamble detection in digital data receivers
JP4314492B2 (ja) * 2003-09-24 2009-08-19 日本電気株式会社 移動通信システム、無線基地局及び送信電力制御を実行するためのプログラム
EP1531590A1 (fr) * 2003-11-11 2005-05-18 STMicroelectronics Belgium N.V. Procédé et appareil pour l'égalisation de canaux avec estimation de la longueur de la réponse impulsionnelle du canal
WO2005055447A1 (fr) * 2003-12-01 2005-06-16 Matsushita Electric Industrial Co., Ltd. Dispositif de reception et procede de reception
JP4418377B2 (ja) * 2004-01-29 2010-02-17 パナソニック株式会社 通信端末装置および基地局装置
US8311152B1 (en) * 2004-02-27 2012-11-13 Marvell International Ltd. Adaptive OFDM receiver based on carrier frequency offset
US20050232378A1 (en) * 2004-04-15 2005-10-20 Mediatek Incorporation Apparatus and method for echo indicator generation
US7684503B2 (en) * 2004-05-07 2010-03-23 Panasonic Corporation OFDM reception apparatus and OFDM reception method
US20060059411A1 (en) * 2004-09-16 2006-03-16 Sony Corporation And Sony Electronics, Inc. Method and system for increasing channel coding gain
KR100749446B1 (ko) * 2004-11-30 2007-08-14 한국전자통신연구원 직교주파수 분할다중화 시스템에서 초기 동기 이전의 자동이득조절 방법 및 장치
DE602004010295T2 (de) * 2004-12-28 2008-10-02 Alcatel Lucent GPS/OFDM Terminal mit gemeinsamem FFT/IFFT Prozessor
KR101002872B1 (ko) * 2005-02-07 2010-12-21 삼성전자주식회사 직교 주파수 분할 다중 접속 시스템에서 자동 이득 조정 장치 및 방법
US7177374B2 (en) * 2005-06-17 2007-02-13 Broadcom Corporation Apparatus and method for sampling frequency offset estimation and correction in a wireless communication system
US7912137B2 (en) * 2006-01-11 2011-03-22 Amicus Wireless Technology Ltd. OFDMA device and method of correcting frequency offset in OFDMA signals
JP4673237B2 (ja) * 2006-02-27 2011-04-20 富士通株式会社 無線受信装置
US20070230635A1 (en) * 2006-04-03 2007-10-04 Leif Wilhelmsson Wireless communication reception with cooperation between agc and digital baseband
US7570713B2 (en) * 2006-06-14 2009-08-04 Harris Stratex Networks, Inc. System and method for anticipatory receiver switching based on signal quality estimation
US7593378B1 (en) * 2006-06-15 2009-09-22 Redpine Signals, Inc. SINR-based powerdown apparatus and method for a wireless communications systems
US7693501B2 (en) * 2006-12-21 2010-04-06 Intel Corporation Techniques to deterministically reduce signal interference
GB0703883D0 (en) * 2007-02-28 2007-04-11 Cambridge Silicon Radio Ltd Receiver gain control
US8165154B2 (en) * 2007-03-12 2012-04-24 Conexant Systems, Inc. Systems and methods for reliable broadcast and multicast transmission over wireless local area network
US8089908B2 (en) 2007-03-13 2012-01-03 Conexant Systems, Inc. Systems and methods for indicating buffered data at an access point using a traffic indication map broadcast
US8170002B2 (en) * 2007-05-31 2012-05-01 Conexant Systems, Inc. Systems and methods for indicating buffered data at an access point with efficient beacon handling
US8233414B2 (en) * 2007-07-05 2012-07-31 Conexant Systems, Inc. Systems and methods for indicating buffered data at an access point using an embedded traffic indication map
TWI366350B (en) * 2007-09-05 2012-06-11 Ite Tech Inc Apparatus for channel estimation
KR101436047B1 (ko) * 2007-12-18 2014-09-01 삼성전자주식회사 주파수 분할 다중 접속 시스템에서 디지털 아날로그 변환비트 감소 방법 및 장치
US8395986B2 (en) * 2007-12-20 2013-03-12 Intel Mobile Communications GmbH Transmitter and receiver
US8462743B2 (en) 2008-01-25 2013-06-11 Nokia Siemens Networks Oy Method, apparatus and computer program for signaling channel quality information in a network that employs relay nodes
US7961593B2 (en) * 2008-01-28 2011-06-14 Wi-Lan, Inc. Downlink acquisition
DE102009014416A1 (de) * 2008-04-14 2009-10-22 Atmel Automotive Gmbh Digitales Funknetz, Schaltung eines Knotens eines digitalen Funknetzes und Verfahren zum Einrichten eines digitalen Funknetzes
DE102008018871B4 (de) * 2008-04-14 2010-10-07 Atmel Automotive Gmbh Empfängerschaltung, Verfahren zum Empfang eines Signals und Verwendung einer Detektionsschaltung und einer Kontrollschaltung
JP4870730B2 (ja) * 2008-07-30 2012-02-08 京セラ株式会社 無線基地局
US8548105B2 (en) * 2008-08-05 2013-10-01 Qualcomm Incorported Joint time-frequency automatic gain control for wireless communication
US8781016B2 (en) * 2010-04-12 2014-07-15 Qualcomm Incorporated Channel estimation for low-overhead communication in a network
JP2013535930A (ja) * 2010-08-13 2013-09-12 アクララ パワー−ライン システムズ インコーポレイテッド デジタル双方向自動通信システム（ｔｗａｃｓ）のアウトバウンド受信機および方法
EP2617150B1 (fr) * 2010-09-14 2020-07-01 Sony Corporation Dispositif de communication utilisant la diversité spatiale, système de communication et procédé
US9461700B2 (en) * 2010-12-02 2016-10-04 Aclara Technologies Llc Mains-synchronous power-line communications system and method
US8413039B2 (en) 2011-02-23 2013-04-02 Io Services, Inc. Computer-implemented system and method for conducting field inspections and generating reports
US20120236953A1 (en) * 2011-03-14 2012-09-20 Markus Dominik Mueck Base Station
FR2976427A1 (fr) * 2011-06-10 2012-12-14 Thales Sa Systeme de reception comprenant un mecanisme contre les interferences pulsees.
US8817917B2 (en) * 2011-06-21 2014-08-26 Ibiquity Digital Corporation Method and apparatus for implementing signal quality metrics and antenna diversity switching control
GB2509151B (en) * 2012-12-21 2016-07-20 Canon Kk Communication devices in a communication network and methods for processing data in such devices
US9294147B2 (en) 2013-10-01 2016-03-22 Aclara Technologies Llc TWACS transmitter and receiver
BR112016020990B1 (pt) * 2014-03-25 2023-02-07 Telefonaktiebolaget Lm Ericsson (Publ) Receptor de preâmbulo, método para receber um sinal de rádio e detectar uma sequência de preâmbulo, e, mídia de armazenamento legível por máquina
EP3550923B1 (fr) 2014-03-25 2020-07-08 Telefonaktiebolaget LM Ericsson (publ) Format de préambule prach amélioré
US9413423B1 (en) 2015-08-18 2016-08-09 Texas Instruments Incorporated SNR calculation in impulsive noise and erasure channels
CN106230624A (zh) * 2016-07-25 2016-12-14 中国联合网络通信集团有限公司 一种网络质量评估方法及装置
CN109792618B (zh) 2016-09-22 2022-07-29 瑞典爱立信有限公司 具有定时未对准的有效上行链路测量信号接收和传输窗口分配
US10636484B2 (en) * 2018-09-12 2020-04-28 Winbond Electronics Corporation Circuit and method for memory operation
US10559149B1 (en) * 2018-10-08 2020-02-11 Nxp B.V. Dynamic anchor pre-selection for ranging applications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1176750A1 (fr) * 2000-07-25 2002-01-30 Telefonaktiebolaget L M Ericsson (Publ) Détermination de la qualité de liaison d'un canal de transmission dans un système de transmission de OFDM

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5911120A (en) * 1995-09-08 1999-06-08 At&T Wireless Services Wireless communication system having mobile stations establish a communication link through the base station without using a landline or regional cellular network and without a call in progress
US6002715A (en) * 1996-07-11 1999-12-14 Motorola, Inc. Method for a receiver unit to determine a quality value for a received signal
US5822380A (en) 1996-08-12 1998-10-13 Ericsson Inc. Apparatus and method for joint channel estimation
US6108517A (en) 1997-07-28 2000-08-22 Ericsson Inc. Methods and apparatus for joint demodulation of adjacent channel signals in digital communications systems
US6185266B1 (en) * 1997-10-07 2001-02-06 Motorola, Inc. Method and system for generating a power control metric in an orthogonal transmit diversity communication system
US6058107A (en) * 1998-04-08 2000-05-02 Motorola, Inc. Method for updating forward power control in a communication system
US6442129B1 (en) 1999-12-06 2002-08-27 Intellon Corporation Enhanced channel estimation
US7010019B2 (en) * 2002-09-18 2006-03-07 Telefonaktiebolaget Lm Ericsson (Publ) Assessment of delay estimation quality using interference estimates

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1176750A1 (fr) * 2000-07-25 2002-01-30 Telefonaktiebolaget L M Ericsson (Publ) Détermination de la qualité de liaison d'un canal de transmission dans un système de transmission de OFDM

Also Published As

Publication number Publication date
EP1424801A2 (fr) 2004-06-02
JP2004180314A (ja) 2004-06-24
US7295517B2 (en) 2007-11-13
US20040100898A1 (en) 2004-05-27

Similar Documents

Publication Publication Date Title
EP1424801A3 (fr) Procédé et dispositif de génération d'une mesure de qualité de canal dans un système de communication par paquets à modulation multiporteuse
US9001918B2 (en) Communication method and apparatus in a wireless communication system supporting multiple OFDM parameters sets
US7151740B2 (en) Transmit power control for an OFDM-based wireless communication system
RU2327289C2 (ru) Способ и устройство для адаптивного управления мощностью с разомкнутым контуром с помощью tdd
US6373433B1 (en) Apparatus and method for generating transmitter antenna weights
US8811367B2 (en) Qualifying available reverse link coding rates from access channel power setting
KR101325309B1 (ko) 가변 다중 속도 통신 시스템용 고속 적응 전력 제어 방법 및 시스템
CN1148014C (zh) 在时分双工通信系统中的组合闭环/开环功率控制
EP1671431B1 (fr) Appareil et procede de formation de faisceau d'emetteur a antennes multiples de signaux de communication sans fil par paquets large bande a debit de donnees eleve
JP5614895B2 (ja) 無線通信システムにおけるアップリンク電力制御装置及びその方法
EP1128577A1 (fr) Dispositif de radiocommunication et procede de radiocommunication
US7734269B2 (en) Control of receiver antenna diversity
EP2404469B1 (fr) Procédé et appareil de contrôle de puissance dans un système de communication sans fil
RU2000128045A (ru) Управление мощностью в нисходящей линии связи в сотовой мобильной системе радиосвязи
EP1601119A3 (fr) Station de base radio et procédé de radiocommunication
US20070129094A1 (en) Power control apparatus and method of time division duplex (TDD) telecommunication system
KR20100097285A (ko) 다중 안테나 시스템에서 채널 환경에 따라 통신 방식을 변경하기 위한 장치 및 방법
EP1467499A3 (fr) Station de base, station mobile, système de communication, procédé de contrôle de transmission et programme de contrôle d'une station mobile
WO2005062491A1 (fr) Systemes et procedes pour ajuster la puissance d'emission dans des reseaux locaux d'entreprise sans fil
WO2005048502A3 (fr) Procede et appareil de communication sans fil a architecture reconfigurable pour supporter une meilleure operation de transfert sans coupure de liaison montante
EP1596548A3 (fr) Dispositif et procédé d'estimation de canal et récepteur sans fil
JP5951925B2 (ja) 無線通信システムのリモートノードによるランダムアクセスチャネルを介して信号を送信するための方法及びリモートノード装置
US7797014B2 (en) Apparatus and method for performing uplink power control in broadband wireless access system
JP2005045504A (ja) マルチキャリア通信システム、マルチキャリア受信装置およびマルチキャリア送信装置
EP1170974B1 (fr) Dispositif de station de base, terminal de communication et procede de communication

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20070425

AKX Designation fees paid

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20070628

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20071109